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Vulnerability record · CVE-2017-15908 · published 26 October 2017

CVE-2017-15908: Systemd project systemd vulnerability

Systemd Project · Systemd

In systemd 223 through 235, a remote DNS server can respond with a custom crafted DNS NSEC resource record to trigger an infinite loop in the dns_packet_read_type_window() function of the 'systemd-resolved' service and cause a DoS of the affected service.

7.5 CVSS 3.1 High EPSS 24% · top 2.3% CWE-835 · CWE-835
7.5CVSS 3.1 base score, v2 5.0
24%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
10References
17 Jun 2026Last modified by NVD

Description

In systemd 223 through 235, a remote DNS server can respond with a custom crafted DNS NSEC resource record to trigger an infinite loop in the dns_packet_read_type_window() function of the 'systemd-resolved' service and cause a DoS of the affected service.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.securityfocus.com/bid/101600 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1039662 Third Party AdvisoryVDB Entry
https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1725351 Issue TrackingPatchThird Party Advisory
https://github.com/systemd/systemd/pull/7184 Issue TrackingPatchThird Party Advisory
https://usn.ubuntu.com/3558-1/ PatchThird Party Advisory
http://www.securityfocus.com/bid/101600 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1039662 Third Party AdvisoryVDB Entry
https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1725351 Issue TrackingPatchThird Party Advisory
https://github.com/systemd/systemd/pull/7184 Issue TrackingPatchThird Party Advisory
https://usn.ubuntu.com/3558-1/ PatchThird Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2017-15908), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.